In late November, I will be in London for several days, and I'm considering taking the train to Paris or Brussels for a day, but I can't decide which one. Obviously, I won't be able to do much, but I'm hoping to fit in a couple of meals, a bit of sightseeing and or shopping. Which one should I choose? And what/where should I eat while I'm there. I appreciate any advide you hounds can provide. Thanks!